Parametric Car Seat Top Tether Protector

Protect your car's seats from being permanently crushed by child seat top tether straps!This protector plate slides onto your headrest rails to provide a rigid, wide bridge that distributes the strap's downward tension, saving your upholstery. The included STL is sized for a Volkswagen Touran with the following measurements:Inner distance between rails: 135mmRail diameter: 15mmCollar gap (between plastic base rings): 105mmKey Features:Slide-On Install: Side slits allow installation without removing the headrest.Button Access: Open sides keep headrest adjustment buttons accessible.Collar Clearance: Stepped bottom safely clears the plastic guide rings.Fully Parametric: Use the included OpenSCAD file to adjust all dimensions for any vehicle.⚠️ Material WarningDO NOT print in PLA or PLA+! Car interiors get extremely hot, and PLA will deform or snap under the tension of the tether strap. Print in PETG, ABS, ASA, or PC for heat and impact resistance.